<template>
  <div class="question-container">
    <!-- 筛选-->
    <el-card>
      <el-row>
        <el-col :span="18">
          <el-form label-width="80px" size="small" :inline="true">
            <el-form-item label="学科名称">
              <el-input style="200px" v-model="requestParams.subjectName"></el-input>
            </el-form-item>
            <el-form-item style="text-align:right">
              <el-button @click="clear()">清除</el-button>
              <el-button @click="filter()" type="primary">搜索</el-button>
            </el-form-item>
          </el-form>
        </el-col>
        <el-col :span="6" style="text-align:right">
          <el-button icon="el-icon-edit" @click="openDialog()" type="success" size="small">新增学科</el-button>
        </el-col>
      </el-row>
      <el-alert :title="`数据一共 ${total} 条`" style="margin-bottom:15px" type="info" class="alert" :closeable="false" show-icon></el-alert>
      <!--表格-->
      <el-table :data="subjects">
        <el-table-column label="序号" type="index"></el-table-column>
        <el-table-column label="学科名称" prop="subjectName"></el-table-column>
        <el-table-column label="创造者" prop="username"></el-table-column>
        <el-table-column label="创建日期" width="160px">
          <template slot-scope="scope">{{scope.row.addDate|parseTimeByString}}</template>
        </el-table-column>
        <el-table-column label="前台是否显示">
          <template slot-scope="scope">{{scope.row.isFrontDisplay ===1?'是':'否'}}</template>
        </el-table-column>
        <el-table-column label="二级目录" prop="twoLevelDirectory"></el-table-column>
        <el-table-column label="标签" prop="tags"></el-table-column>
        <el-table-column label="题目数量" prop="totals"></el-table-column>
        <el-table-column label="操作" width="240px">
          <template slot-scope="scope">
            <el-button type="text" @click="$router.push(`directorys?id=${scope.row.id}&name=${encodeURIComponent(scope.row.subjectName)}`)">学科分类</el-button>
            <el-button type="text" @click="$router.push(`tags?id=${scope.row.id}&name=${encodeURIComponent(scope.row.subjectName)}`)">学科标签</el-button>
            <el-button type="text" @click="openDialog(scope.row)">修改</el-button>
            <el-button type="text" @click="delSubject(scope.row)">删除</el-button>
          </template>
        </el-table-column>
      </el-table>
      <!--分页-->
      <el-pagination style="margin-top:20px;text-align:right" background layout="prev,pager,next,sizes,jumper" :total="total" :page-size="requestParams.pagesize" :current-page="requestParams.page" @current-change="pager" :page-sizes="[5,10,20,50]" @size-change="handleSizeChange"></el-pagination>
    </el-card>
    <!--修改|添加-->
    <subjects-add ref="subjectsadd" :data="currSubject" @updateList1="updateList()"></subjects-add>
  </div>
</template>

<script>
import {list as getSubjuects,remove} from '@/api/hmmm/subjects';
import SubjectsAdd from '../components/subjects-add'
export default {
  name:'SubjectsList',
  components:{SubjectsAdd},
  data(){
    return{
      requestParams:{
        subjectName:'',
        page:1,
        pagesize:10
      },
      subjects:[],
      total:0,
      currSubject:{}
    }
  },
  created(){
    this.getList()
  },
  methods:{
    //查询列表
    async getList(){
      const {data} = await getSubjuects(this.requestParams)
      this.subjects = data.items
      this.total = data.counts
    },
    //切换分页
    pager(np){
      this.requestParams.page = np
      this.getList()
    },
    //切换条数
    handleSizeChange (size) {
      this.requestParams.page = 1
      this.requestParams.pagesize = size
      this.getList()
    },
    //清除筛选条件
    clear(){
      this.requestParams ={
        subjectName:'',
        page:1,
        pagesize:10
      }
    },
    //进行筛选
    filter(){
      this.requestParams.page = 1
      this.getList()
    },
    //打开 新增|修改 对话框
    openDialog(subject){
      this.currSubject = subject || {}
      this.$nextTick(()=>{
        this.$refs.subjectsadd.open()
      })
    },
    //新增|修改 后更新列表
    updateList(){
      if(!this.currSubject.id){
        this.requestParams.page = 1
      }
      this.getList()
    },
    //删除学科
    async delSubject(subject){
      await this.$confirm('此操作将永久删除该学科，是否继续？','提示',{
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      })
      await remove(subject)
      this.$message.success('删除成功')
      this.getList()
    }
  }
}
</script>

<style lang="scss" scoped>
.fs {
  font-size: 12px;
}
</style>
